Quote Originally Posted by Mr. Nemesis
Seriously dont go with the GSX motor, its garbage. The Gallo 22 (Serial number - 398GVDTYPE) which is a beefed up version of the GSX 4G63 is much more worth it and has a universial kit to bolt it up to almost any transmission. My buddy has this motor bolted up to a Tremec and that shifts like a dream. Pushes 31psi daily driven, not one problem at all, sounds like an 18 wheeler !! I think his screen name on here is Bleach. Dude doesnt know too much but he can get you in touch with the right people.
Not necessarily garbage, its still a good engine overall. If I were to use a 4g63 for anything though, I would use the 1st gen 6 bolt engine since it doesn't crankwalk as commonly as the 7 bolt 2nd gen ones do. Look up swapping a GST/GSX engine into a RS on dsmtuners.com, you'll find much more useful info on there than you will here.